USB 3.0 Type C Waterproof Connector with Nested Sealing
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Solution Overview
Problem
Conventional cable connectors lack effective waterproofing solutions, leading to inadequate protection against water ingress.
Innovation Solution
A waterproof connection device featuring a metal housing, a USB 3.0 type C transmission cable assembly with a molding holder, insulating sleeve, and adhesive layer, along with a water-proof colloid to create a sealed environment, ensuring the structural connection and signal transmission while preventing water entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cable connector structure is used, then manufacturing simplicity is maintained, but water-proofing capability is insufficient
Solution Approach 1:
The patent implements nesting by placing the molding holder inside the metal housing, the insulating sleeve inside the molding holder, and the water-proof colloid filling the annular space between these nested components. This nested arrangement creates multiple protective layers that enhance water-proofing capability while maintaining a compact overall structure, resolving the contradiction between improved reliability and device complexity.
Solution Approach 2:
The patent employs composite materials by combining the metal housing (providing structural strength), the molding holder (providing insulation and support), the insulating sleeve (providing additional electrical insulation), and the water-proof colloid (providing sealing). This multi-material composite approach enhances water-proofing capability through material diversity while managing the complexity through functional specialization of each material layer.
2Reliability
If water-proof colloid is applied to conventional connectors, then water protection is improved, but structural strength and connection stability are compromised
Solution Approach 1:
The patent segments the water-proofing function from the structural connection function by using the water-proof colloid exclusively for sealing the annular space, while the structural connection is handled by the mechanical interlocking of the molding holder with the metal housing through the accommodating slot and fixing slot. This segmentation allows each component to optimize its specific function without compromising the other, resolving the contradiction between water protection and structural strength.
Solution Approach 2:
The patent introduces the insulating sleeve as an intermediary component between the molding holder and the water-proof colloid. The insulating sleeve provides a stable mounting surface for the colloid and ensures that the water-proofing function is achieved without directly compromising the structural connection between the molding holder and metal housing, thus maintaining both water protection and structural strength.
3Reliability
If partition portion isolates fixing slot, then water-proofing is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent merges the partition portion with the molding holder as an integrated component. The partition portion is formed as an extension of the molding holder's pillar portion, creating a unified structure that provides both support for the insulating sleeve and water-proof isolation of the fixing slot. This merging reduces the number of separate components and simplifies the manufacturing process while maintaining enhanced water-proofing effectiveness.
Data Source
AI summary
A water-proof connection device and a transmission cable assembly thereof are provided. The transmission cable assembly includes a connector being USB 3.0 type C, a transmission cable, a molding holder, an insulating sleeve, and an adhesive layer. The connector has an external end portion and an opposite internal end portion. The transmission cable includes a plurality of wires connected to the internal end portion. The molding holder includes a partition portion and a pillar portion that extends from the partition portion, and connection parts of the internal end portion and the wires are embedded in the pillar portion. The insulating sleeve surrounds a part of the pillar portion and a part of the transmission cable that are arranged adjacent to each other. The adhesive layer is formed on an inner surface of the insulating sleeve, and extends outside two opposite ends of the insulating sleeve.